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M-D Building Products FLEX 3.28 Ft. W x 16.5 Ft. L Underlayment Roll, 54 Sq. Ft./Roll

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PROVA 80212Click To Copy M-D Building Products FLEX 3.28 Ft. W x 16.5 Ft. L Underlayment Roll, 54 Sq. Ft./Roll

Item #: 80212 by PROVA

UPC #: 00043374802122

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$109.19

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Features
  • Made of three layers of polypropylene for mechanical bonding, vapor management and Sheer Stress control to neutralize stress caused by substrate movement
  • Protects tiled floors from cracking as substrates move or settle
  • Underlayment features a patented Shear Stress Controlsystem with nonwoven anchoring fleece to neutralize stress caused by movement in the substrate
  • Lays flat and features strong structural integrity to protect against collapse under the weight of installer's knees
  • Achieved EXTRA HEAVY Performance Rating When Tested to ASTM C627
  • Tile or stone can be installed immediately over PROVA-FLEX
  • Premium polymer-modified thin set mortar required for installation, no premixed mortar or mastic

Thickness

0.125 in.

Dimensions

3.28 Ft. W x 16.5 Ft. L

Coverage Area (sq. ft.)

54

Product Overview
PROVA-FLEX is a durable, lightweight uncoupling membrane that provides crack isolation protection to concrete or wood substrates. The underlayment consists of three layers: a top layer of woven polypropylene mesh, a central sheet of polypropylene, and a bottom layer of non-woven polypropylene. The top layer provides a mechanical bond between the cured thin set and tiles, and allows for the efficient spread of thin set mortar; the central layer includes hollow studs for holding modified thin set mortar; and the bottom layer, which is secured with a polyolefin-based adhesive, provides Shear Stress Control by neutralizing stress caused by substrate movement. This underlayment is lightweight and is an easy-to-install alternative to backer board.